Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Wacker ELASTOSIL RT 629 Silicone Rubber

Wacker ELASTOSIL RT 629 is a two-component, addition-curing liquid silicone rubber (LSR) from Wacker’s high-performance ELASTOSIL RT series. It offers excellent flowability, low viscosity, fast cure speed, and outstanding mechanical properties after vulcanization—ideal for precision injection molding of medical, automotive, and consumer parts.
  • wacker elastosil rt 629 silicone rubber_1f5dc936
  • wacker elastosil rt 629 silicone rubber_1f5dc936

Features Of Wacker ELASTOSIL RT 629 Silicone Rubber

  1. High tear strength and excellent elongation for demanding dynamic sealing applications.

  2. Fast room-temperature vulcanization (RTV) with low shrinkage and minimal by-products.

  3. Outstanding resistance to weathering, UV radiation, and extreme temperatures (–60 °C to +200 °C).

  4. Good adhesion to common substrates including metals, glass, and plastics without primer.

  5. Low compression set ensuring long-term sealing performance under continuous stress.

Typical Applications Of Wacker ELASTOSIL RT 629 Silicone Rubber

  1. Automotive gaskets and vibration-damping components.

  2. Electrical insulation and encapsulation of sensitive electronic modules.

  3. Industrial sealing for HVAC systems and fluid-handling equipment.

  4. Medical device housings requiring biocompatibility and sterilization resistance.

  5. Architectural joint sealing in façade and curtain wall systems.

Specifications Of Wacker ELASTOSIL RT 629 Silicone Rubber

Chemical TypeCondensation-curing, acetoxy-based silicone rubber
Product FormPaste-like, thixotropic one-component compound
AppearanceOpaque white to off-white paste
Primary ApplicationsSealing, bonding, and potting in industrial and technical environments
Key FeaturesRoom-temperature curing, low odor, non-corrosive
Shore A Hardness (7 days, 23 °C/50% RH)38–42
Tensile Strength (7 days, 23 °C/50% RH)≥ 4.0 MPa
Elongation at Break (7 days, 23 °C/50% RH)≥ 350%


Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *